Master's MateSafety Initiative Network
The Master's Mate Safety Initiative Network (MMSIn) — like AAA for the ocean, but free & community-driven. Cruisers keeping each other safe: anchor-drag & distress alerts, a verified captains directory, and a watch network that has your back.
Vessel
A COOP NO15
MMSI 431000818 · Call sign JD2850
Not yet on Master's MateFlag
JPNLength
68 m
Beam
12 m
Call sign
JD2850
IMO
3145792
First reported
Jun 2026
Last reported
Jun 2026
AIS reports
50
A COOP NO15, a vessel flagged in Japan, measures 68 metres on deck. Below, she has a beam measuring 12 metres. She's listed under MMSI 431000818, call sign JD2850, IMO 3145792. A COOP NO15 belongs on the Master's Mate Safety Initiative Network, a free safety net shared by boats the world over.
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Last known position · Jun 4, 2026
Position
38.4148° N, 141.2663° E
Crossing the Sea of Japan? You're never out there alone.
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Joining the Safety Initiative Network doesn't just put A COOP NO15 on the map. It hands you the full bridge:
Anchor Watch
GPS-precise drag alarms that actually wake you — and your whole crew. Sleep through the night.
Worldwide Charts
Navionics-grade vector charts, satellite & raster overlays, online or off. Your whole cruising ground.
Live AIS & Traffic
See every vessel around you in real time. Closest-approach warnings before they matter.
Weather & Routing
GRIB wind, swell & current on the chart. Plan passages with ETA-calibrated forecasts per leg.
Onboard Cameras
Watch your boat from anywhere — live feeds and 24h recording, straight from your gateway.
Systems Monitoring
Batteries, bilge, tanks, Victron & NMEA 2000 telemetry — your whole boat on one dashboard.
Distress Mesh
Mayday & Pan-Pan that ripple out to nearby cruisers — a watch network that has your back.
Hail Any Captain
A verified captains directory + direct hailing. Reach the boat next to you, or across the bay.
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About A COOP NO15
What kind of vessel is A COOP NO15?
A COOP NO15 is a vessel flagged to Japan.
Where was A COOP NO15 last seen?
A COOP NO15 was last reported in the Sea of Japan in Jun 2026 on public AIS.
What is A COOP NO15's MMSI?
A COOP NO15's MMSI is 431000818. Call sign JD2850. IMO 3145792.
How big is A COOP NO15?
A COOP NO15 is about 68 m long, 12 m on the beam.
Is A COOP NO15 on the Master's Mate Safety Initiative Network?
Not yet. If A COOP NO15 is your boat, you can claim it free and join the Master's Mate Safety Initiative Network (MMSIn).
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